126273893 has 4 divisors (see below), whose sum is σ = 126548268. Its totient is φ = 125999520.

The previous prime is 126273869. The next prime is 126273899. The reversal of 126273893 is 398372621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29408929 + 96864964 = 5423^2 + 9842^2 .

It is a cyclic number.

It is not a de Polignac number, because 126273893 - 2¹⁸ = 126011749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126273893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126273899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136496 + ... + 137417.

It is an arithmetic number, because the mean of its divisors is an integer number (31637067).

Almost surely, 2^126273893 is an apocalyptic number.

It is an amenable number.

126273893 is a deficient number, since it is larger than the sum of its proper divisors (274375).

126273893 is an equidigital number, since it uses as much as digits as its factorization.

126273893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274374.

The product of its digits is 108864, while the sum is 41.

The square root of 126273893 is about 11237.1657013679. The cubic root of 126273893 is about 501.6927864802.

The spelling of 126273893 in words is "one hundred twenty-six million, two hundred seventy-three thousand, eight hundred ninety-three".